// Copyright (c) 2018-2023 Broadcom. All Rights Reserved. The term "Broadcom" refers to Broadcom
// Inc. and/or its subsidiaries.
//
// This software, the RabbitMQ Java client library, is triple-licensed under the
// Mozilla Public License 2.0 ("MPL"), the GNU General Public License version 2
// ("GPL") and the Apache License version 2 ("ASL"). For the MPL, please see
// LICENSE-MPL-RabbitMQ. For the GPL, please see LICENSE-GPL2.  For the ASL,
// please see LICENSE-APACHE2.
//
// This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND,
// either express or implied. See the LICENSE file for specific language governing
// rights and limitations of this software.
//
// If you have any questions regarding licensing, please contact us at
// info@rabbitmq.com.
package com.rabbitmq.perf;

import com.rabbitmq.client.ConnectionFactory;
import io.micrometer.core.instrument.composite.CompositeMeterRegistry;
import org.apache.commons.cli.Option;
import org.apache.commons.cli.Options;

/** */
public interface Metrics {

  Options options();

  default void configure(ConfigurationContext context) throws Exception {}

  default boolean isEnabled(CommandLineProxy cmd) {
    for (Object optObj : this.options().getOptions()) {
      Option option = (Option) optObj;
      if (cmd.hasOption(option.getOpt())) {
        return true;
      }
    }
    return false;
  }

  default void start() {}

  default void close() throws Exception {}

  class ConfigurationContext {

    private final CommandLineProxy cmd;
    private final CompositeMeterRegistry meterRegistry;
    private final ConnectionFactory factory;
    private final String[] args;
    private final String metricsPrefix;
    private final Options metricsOptions;

    public ConfigurationContext(
        CommandLineProxy cmd,
        CompositeMeterRegistry meterRegistry,
        ConnectionFactory factory,
        String[] args,
        String metricsPrefix,
        Options metricsOptions) {
      this.cmd = cmd;
      this.meterRegistry = meterRegistry;
      this.factory = factory;
      this.args = args;
      this.metricsPrefix = metricsPrefix;
      this.metricsOptions = metricsOptions;
    }

    public CommandLineProxy cmd() {
      return cmd;
    }

    public CompositeMeterRegistry meterRegistry() {
      return meterRegistry;
    }

    public ConnectionFactory factory() {
      return factory;
    }

    public String[] args() {
      return args;
    }

    public String metricsPrefix() {
      return metricsPrefix;
    }

    public Options metricsOptions() {
      return metricsOptions;
    }
  }
}
